Checking ATX 12VO power supplies
Checking ATX 12VO power supplies
Connect the PS_ON pin to ground using a conductive item such as a paper clip or wire. Then use a multimeter to check the 12V output. Refer to the ATX12VO pinout chart for guidance. This test will confirm whether the power supply activates and supplies power. Make sure you have an ATX12VO power supply installed, or verify if it's a custom 12V unit.